Assertion `LIsBuiltins && RIsBuiltins && "Non-built-in locations must be rooted in the main file"' failed.

[Quuxplusone]

Bugzilla Link	PR16224
Status	NEW
Importance	P normal
Reported by	Petko Padevski (ppadevski@gmail.com)
Reported on	2013-06-04 11:07:15 -0700
Last modified on	2013-06-04 14:32:25 -0700
Version	3.2
Hardware	PC Linux
CC	dgregor@apple.com, llvm-bugs@lists.llvm.org, rafael@espindo.la
Fixed by commit(s)
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The following error occurred while compiling via clang 3.2

clang++: /local/taoz/toolchain/src/llvm-
3.2/llvm/tools/clang/lib/Basic/SourceManager.cpp:1916: bool
clang::SourceManager::isBeforeInTranslationUnit(clang::SourceLocation,
clang::SourceLocation) const: Assertion `LIsBuiltins && RIsBuiltins && "Non-
built-in locations must be rooted in the main file"' failed.
0  clang++ 0x0a7eeae8
Stack dump:
0.  Program arguments: XXX
1.  <eof> parser at end of file
2.  Code generation
3.  Running pass 'Function Pass Manager' on module 'YYY.cpp'.

As the source file is really really huge can someone please explain what that
assertion means so that I can try to narrow the issue down.

Regards,
  Petko.

[Quuxplusone]

> As the source file is really really huge can someone please explain what
> that assertion means so that I can try to narrow the issue down.

I haven't seen this assertion before, but can you try delta or creduce on the
file?